Xangars Solutions Interview Questions, Process, and Tips

Black box testing is testing without knowledge of the internal workings of the system, while white box testing is testing with knowledge of the internal workings.

• Black box testing focuses on the functionality of the system

• White box testing focuses on the internal structure of the system

• Black box testing is usually done by end-users or testers who do not have knowledge of the internal workings of the system

• White box tes...read more

Black box testing is a technique where the internal workings of the system are not known to the tester.

• Tests are performed based on the system's specifications and requirements.

• The tester does not have access to the source code or the internal structure of the system.

• The focus is on the system's functionality and user interface.

• Examples include functional testing, regression testing, and acceptance testing.

Test coverage is the measure of how much of the software is tested. 7 principles of testing are guidelines for effective testing.

• Test coverage is the extent to which the software is tested against the requirements.

• It is important to achieve maximum test coverage to ensure the software is reliable.

• The 7 principles of testing are: testing shows presence of defects, exhaustive testing is impossible, early testing saves ti...read more

Software testing life cycle is a process of testing software in a systematic and planned manner.

• It includes planning, designing, executing, and reporting phases.

• Testing starts with requirement analysis and ends with test closure.

• Different types of testing like unit testing, integration testing, system testing, and acceptance testing are performed in different phases.

• Defect tracking and retesting are also part of the te

A trigger in SQL is a set of actions that are automatically performed when a specified event occurs.

• Triggers are used to enforce business rules, maintain data integrity, and automate tasks.

• They can be defined to execute before or after an INSERT, UPDATE, or DELETE operation.

• Triggers can be written in SQL or PL/SQL.

• Example: A trigger can be created to update a 'last_modified' column whenever a row is updated in a table.